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BOS 265:2007
P558.60
Cast Iron Surface Boxes and Manhole and Inspection Covers and Frames – Specification
Description
This standard specifies the material, dimensional, mass, constructional and strength requirements for a) fifteen types of cast iron manhole covers and frames,
b) eleven types of cast iron surface boxes (with covers) for meters, valves, stopcocks, and hydrants, and
c) two types of cast iron inspection covers and frames.